The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2025
Filed:
Dec. 22, 2021
Stt Inc., Kanagawa, JP;
Ntn Corporation, Osaka, JP;
Shinichi Takizawa, Kanagawa, JP;
Hitoshi Nakamura, Kanagawa, JP;
Hayato Kawaguchi, Shizuoka, JP;
Toshiki Masuda, Shizuoka, JP;
STT INC., Kanagawa, JP;
NTN CORPORATION, Osaka, JP;
Abstract
A rolling bearingincludes an inner ringand an outer ringthat are raceway rings, and a plurality of ballsinterposed between the inner ring and the outer ring. The outer ringis fitted to a housing. The rolling bearingincludes a surface coating filmon an outer ring outer diametrical surfacethat is a fitting surface with the housing. The surface coating filmcontains: a binder containing two or more kinds of thermosetting resins having different average molecular weights; and a solid lubricant. The solid lubricant contains molybdenum disulfide, polytetrafluoroethylene resin, and graphite.